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AISI 310S Stainless Steel vs. 3104 Aluminum

AISI 310S stainless steel belongs to the iron alloys classification, while 3104 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AISI 310S stainless steel and the bottom bar is 3104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34 to 44
1.1 to 20
Fatigue Strength, MPa 250 to 280
74 to 130
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 420 to 470
110 to 180
Tensile Strength: Ultimate (UTS), MPa 600 to 710
170 to 310
Tensile Strength: Yield (Proof), MPa 270 to 350
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
160
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
41
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 4.3
8.4
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 190
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
1.6 to 60
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
34 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21 to 25
17 to 31
Strength to Weight: Bending, points 20 to 22
25 to 37
Thermal Diffusivity, mm2/s 4.1
64
Thermal Shock Resistance, points 14 to 16
7.6 to 13

Alloy Composition


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Aluminum (Al), % 0
95.1 to 98.4
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0
0.050 to 0.25
Gallium (Ga), % 0
0 to 0.050
Iron (Fe), % 48.3 to 57
0 to 0.8
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0 to 2.0
0.8 to 1.4
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15